Abstract
Estimating the undegradable intake protein content of two forages by different commercial proteases (1997)
Highlights
We evaluated the potential of several commerciall y available proteases for use in predicting the undegradable intake protein (UIP) concentrations o f alfalfa and prairie hay
Protease s differed in their estimates o fthe rate of forage protein breakdown an dthe amounts of differen t forage protein fractions
Values obtained using the proteases were compared with those obtained b y in situ and in vivo methods in a previous experiment
Summary
We evaluated the potential of several commerciall y available proteases for use in predicting the undegradable intake protein (UIP) concentrations o f alfalfa and prairie hay. Protease s differed in their estimates o fthe rate of forage protein breakdown an dthe amounts of differen t forage protein fractions. At least one proteas e appeared to yield acceptable predictions of UIP v ia a short-term, single timepoint assa y. Assays of this type deserve further consideration for commercial application. Several commercial proteases for determining protein degradability, size of protein fractions, and the UIP content of forages. Values obtained using the proteases were compared with those obtained b y in situ and in vivo methods in a previous experiment
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